tea5766uk NXP Semiconductors, tea5766uk Datasheet - Page 33

• Manufacturer Part Number: tea5766uk
• Description: Tea5766uk Stereo Fm Radio + Rds
• Manufacturer: NXP Semiconductors

NXP Semiconductors
TEA5766UK_1
Product data sheet
Fig 15. I
BYTE 12R
BYTE 24R
BYTE 0R
a. FM read mode data transfer
d. RDS write mode data transfer
b. RDS read mode data transfer
c. FM write mode data transfer
2
C-bus data transfers to the TEA5766UK
BYTE 13R
BYTE 25R
10.2.2 I
BYTE 1R
BYTE 14R
BYTE 26R
BYTE 2R
Figure 15
FM and FM + RDS access. For simplicity the address, start, stop and acknowledge bits
are not shown. The FM and RDS part have different I
When the TEA5766UK is addressed with the FM radio address, also in one read action
byte 12R to byte 27R can be read. A read does not have to stop at byte 11R.
When writing also all bytes, byte 0W to byte 10W can be written with one write action.
So effectively using the RDS part address only skips some bytes, which reduces bus
access.
With the standby bit, the TEA5766UK can be switched in a low current Standby mode.
Then the bus is still active. Is the bus interface deactivated, by making pin BUSEN LOW
and without programmed Standby mode, the TEA5766UK keeps its normal operation, but
is isolated from the bus lines.
It is possible to operate the TEA5766UK with pin BUSEN hard wired to pin VREFDIG and
have the bus interface always active.
Power-on reset: the mute is set, all other bits are set default according to the tables in
Section
The I
shown in
2
C-bus output driving characteristics
BYTE 0W
2
C-bus output driving characteristics deviate from table 4 and table 5 in
BYTE 15R
BYTE 27R
11.2. To initialize the TEA5766UK all bytes have to be transferred.
BYTE 3R
Table
shows the sequence of I
BYTE 1W
10.
BYTE 16R
BYTE 7W
BYTE 4R
BYTE 2W
Rev. 01 — 22 March 2007
BYTE 17R
BYTE 5R
BYTE 8W
BYTE 3W
BYTE 18R
2
BYTE 9W
BYTE 6R
C-bus data bytes for read and write operations for both
BYTE 4W
BYTE 10W
BYTE 19R
BYTE 7R
001aaf461
BYTE 5W
BYTE 20R
BYTE 8R
2
C-bus addresses as stated.
BYTE 6W
001aaf460
BYTE 21R
BYTE 9R
TEA5766UK
Stereo FM radio + RDS
BYTE 10R
BYTE 22R
© NXP B.V. 2007. All rights reserved.
Ref. 1
BYTE 11R
BYTE 23R
001aaf458
001aaf459
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